#1D1B7D#1D1B7D

#1D1B7D is a dark, vivid blue. Relative luminance 0.025; OKLCH L 30.9% C 0.157 H 273.1°. Best body text is #FFFFFF at 13.95:1 contrast (WCAG AA passes).

Color values

HEX	#1D1B7D
RGB	rgb(29, 27, 125)
HSL	hsl(241, 64%, 30%)
HSV	hsv(241, 78%, 49%)
CMYK	cmyk(76.8%, 78.4%, 0%, 51%)
CIE-LAB	lab(18.03, 35.51, -54.33)
CIE-LCH	lch(18.03, 64.91, 303.17°)
OKLab	oklab(30.86% 0.0084 -0.1572)
OKLCH	oklch(30.86% 0.157 273.1)
XYZ	xyz(4.5991, 2.5253, 19.6431)
Luminance	0.0253 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1D1B7D #7B7D1B

analogous

#1B4A7D #1D1B7D #4E1B7D

triadic

#1D1B7D #7D1D1B #1B7D1D

tetradic

#1D1B7D #7D1B4A #7B7D1B #1B7D4E

square

#1D1B7D #7D1B4A #7B7D1B #1B7D4E

split-complementary

#1D1B7D #7D4E1B #4A7D1B

monochromatic

#060519 #11104B #1D1B7D #2926AF #403DD5

Accessibility & contrast

On white

13.95

#1D1B7D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.51

#1D1B7D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1D1B7D

13.95:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1D1B7D	#FFFFFF	#000000	##FFFFFF
##1D1B7D	1.00	13.95	1.51	13.95
#FFFFFF	13.95	1.00	21.00	1.00
#000000	1.51	21.00	1.00	21.00
##FFFFFF	13.95	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003180

Deuteranopia (green-blind)

#00277B

Tritanopia (blue-blind)

#00384B

Achromatopsia (no color)

#2C2C2C

Design tokens & code

CSS

--color: #1d1b7d;
/* rgb */ color: rgb(29, 27, 125);
/* oklch */ color: oklch(30.9% 0.157 273.1);

Tailwind

colors: {
  custom: {
    50: '#6b59a4',
    500: '#1d1b7d',
    950: '#000000',
  },
}

SCSS

$custom: #1d1b7d;
$custom-light: #6b59a4;
$custom-dark: #000000;

JSON

{
  "hex": "#1d1b7d",
  "rgb": {
    "r": 29,
    "g": 27,
    "b": 125
  },
  "hsl": {
    "h": 241.224,
    "s": 64.474,
    "l": 29.804
  },
  "oklch": {
    "l": 0.30862,
    "c": 0.15745,
    "h": 273.1
  },
  "luminance": 0.02526
}

Semantic roles & 50–950 ramp

primary

#1D1B7D

secondary

#AFB143

accent

#E740E4

background

#F6F5FA

surface

#ECE9F4

border

#C7C5CE

text

#08030F

muted

#7A787F

Preview Lab

Preview with #1D1B7D

Body copy rendered with the generated semantic roles for this colour.

Preview Lab → · Contrast checker → · Palette generator →